Control.Concurrent.Task

Synopsis

• data Task a = Task {
  • taskStart :: MVar (Maybe (SomeException -> IO ()))
  • taskResult :: TaskResult a
  }
• data TaskException
  • = TaskCancelled
  • | TaskKilled
• data TaskResult a = TaskResult {
  • taskResultEmpty :: IO Bool
  • taskResultTryRead :: IO (Maybe (Either SomeException a))
  • taskResultTake :: IO (Either SomeException a)
  • taskResultFail :: SomeException -> IO ()
  }
• taskStarted :: Task a -> IO Bool
• taskRunning :: Task a -> IO Bool
• taskStopped :: Task a -> IO Bool
• taskDone :: Task a -> IO Bool
• taskFailed :: Task a -> IO Bool
• taskCancelled :: Task a -> IO Bool
• taskWaitStart :: Task a -> IO Bool
• taskWait :: Task a -> IO (Either SomeException a)
• taskKill :: Task a -> IO ()
• taskCancel :: Task a -> IO Bool
• taskStop :: Task a -> IO Bool
• runTask :: (MonadCatch m, MonadIO m, MonadIO n) => (m () -> n ()) -> m a -> n (Task a)
• runTask_ :: (MonadCatch m, MonadIO m, MonadIO n) => (Task a -> m () -> n ()) -> m a -> n (Task a)
• forkTask :: IO a -> IO (Task a)

Documentation